Feed-roll.



No. 865,575. PATENTED SEPT. 10, 1907. G. W. DREW.

FEED ROLL.

APPLICATION FILED APB..10.1906.

I um l1 huh,

WITNESSES:

1N VEN TOR W7 M ATTORNEY.

THE NORRIS PEYERS cm, WASHINGTON. n. c.

GEORGE W. DREW, OF SAN FRANCISCO, CALIFORNIA.

FEED-ROLL.

Specification of Letters Patent.

Patented Sept. 10, 1907.

Application filed April 10. 1906. Serial Nor 310,892.

To all whom it may concern:

Be it known that I, GEORGE W. Dnnw, a citizen of the United States,residing at San Francisco, in the county of San Francisco and State ofCalifornia, have invented certain new and useful Improvements inFeed-Rolls, of which the following is specification.

This invention relates to improvements in feed rollers, the object ofthe invention being to provide a feed roller which can be made at lesscost and which will be more durable than those heretofore used.

In the accompanying drawing Figure l is a side view of the feed roller;Fig. 2 is a longitudinal section thereof; Fig. 3 is a cross sectionthereof; Fig, f is an end view; Fig. 5 is a perspective view of one ofthe blades detached Referring to the drawing 1 indicates a tube orsupport, having a head 2, with a rentrant inner surface 3. Around saidtube are assembled the blades f each having an inner or body portion 5and an outer or tooth portion 6. The inner body portion has sides inplanes passing through the axis of the tube, so that said sides diverge,as shown in Fig. 3. The inner face or edge 8 of the body portion restsupon the tube. The sides 9 of the outer or tooth portion converge fromthe outer edges of the diverging sides of the body portion to an edgesulliciently sharp for the purpose desired. "he ends of the blades areformed with notches 10, to engage at one end the head 2 of the tube, andat the other end a collar ll having a reentrant inner surfacecorresponding to the oblique inner side of the head of the tube, and theinner sides of the notches of the blades are formed oblique to restagainst said inner surfaces. The collar 11 is secured upon the tube bymeans of a nut 12 upon the end of the tube. With this construction thefeed roll can be made at much less cost than feed rolls heretofore used,as, for instance, those in which the blades are inserted into grooves ina drum, the work of forming these grooves being very expensive. Theblades can be formed from a continuous strip of metal rolled into theproper form cross-sectional and cut into lengths. A further importantadvantage of this construction is that, by making the bladescomparatively thick, there is sufficient stock in the teeth to permitthem to be tempered hard, so that they will wear well. In feed rolls inwhich the blades have been made thin, the teeth had to be set close tothe body of the roll, or they would break it tempered sufliciently hard.

I elain1:

A feed roller consisting of a cylindrical support, and blades having aninner or body portion, and an outer or tooth portion, the inner faces01' edges of the body portions resting on the support, and the sides ofadjacent body portions converging towards, and contracting with, eachother, and the sides of each tooth portion converging from the outeredge of the blade, the ends of the blades having notches with innersides sloping towards the axis 0tthe support in an outward longitudinaldirection from the blades, the support having nt one end an integralhead with a reentrnnt oblique inner surface engaging said sloping innersides of the notches at one end of the blades, and a collar at the otherend having a similar reentrant inner surface to engage those of thenotches at the other end, and means for securing said collar inposition, substantially as described.

In witness whereof I have hereunto set my hand in the presence of twosubscribing witnesses G. W. DREW.

Witnesses BESSIE GORFINKEL, HAZEL RIVERS.

